When installing the swing arm boot, it slips off just when you thought it was in place, before you can get the clamp positioned and the screw started. Those days are finally gone thanks to this innovative, improved boot which features an inside groove that firmly holds the boot in position. The grip on the swing arm is actually so strong that it will support the weight of the swing arm without a clamp!The material used is much more flexible and pliable than the original rubber part. In addition to the internal groove, the outer grooves for the clamps are wider and this also makes this boot much easier to deal with than the original part.